mavericks.pngApple today seeded build 13E19 of OS X 10.9.4 to developers, just over a week after seeding the second OS X 10.9.4 beta and more than a month after the public release of OS X 10.9.3, which included enhanced support for 4K displays and syncing improvements.

The beta is available through the Software Update mechanism in the Mac App Store and should be in the Mac Dev Center shortly.

It remains unclear what improvements the 10.9.4 update will bring to Mavericks, but it is likely to include bug fixes and stability enhancements. Apple is asking developers to focus on Graphics Drivers, Bluetooth, Audio Drivers, Finder, App Store, and Safari.

Update: The new build is now available in the Mac Dev Center.

Related Forum: OS X Mavericks

Top Rated Comments

TestedLion Avatar
136 months ago
AND . . . that excuse, is lame. That is all people with your point of view typically say. We have a stable OS in Mavericks. Why not improve it rather than reinvent the wheel every time. A lot of people feel this way and a lot of people don't. Just because you thinks it "funny" doesn't mean you are right. I have come to expect more from Apple. I feel this should not be even at the developer stage yet. It will release in a few short months. What have they been doing all this time?
lol.

itt

people who have zero understanding of what dev. preview means.

these releases aren't meant to be stable system wide, necessarily. they're meant to preview, test, develop new technology implementations and/or "improvements" over older technologies.

if you didn't get your dev. previews via torrent sites, you'd actually understand what dev. preview means.

lol

you can keep your mavericks or whatever OS you bloody well want. it will eventually become deprecated. However, really, that won't necessarily matter depending on how satisfactory your OS + software solution is for the implementation of the desired end result your needs indicate.
Score: 9 Votes (Like | Disagree)
Steve121178 Avatar
136 months ago
Mavericks is dead. We want Yosemite!!! :D

I want stability. Something that's been lacking in OS X in recent years.

A new OS per year is ridiculous.
Score: 7 Votes (Like | Disagree)
bbfc Avatar
136 months ago
Then I would steer clear of 10.10. Seems the opposite of stability from what I can gather. Not sure how that classifies as progress, even at early beta stage...[COLOR="#808080"]

----------

IT'S A DEVELOPER PREVIEW. It's not even at beta stage yet! Jeez. People say the funniest things!
Score: 6 Votes (Like | Disagree)
Xenomorph Avatar
136 months ago
Mavericks is dead. We want Yosemite!!! :D

I'd like it if companies actually FIXED existing software instead of just rapidly releasing new software.

The existing stuff isn't fixed, and the new stuff introduces new bugs. Those new bugs won't get fixed, because they will just release a newer new product instead.

Bluetooth sometimes just "dies" on 10.9. Apple Mail has lots of issues in 10.9. Will these be fixed with 10.9.4? Who knows. Are they fixed in 10.10? Who knows.
Score: 5 Votes (Like | Disagree)
SVTmaniac Avatar
136 months ago
So having numerous pageouts and the system slow to a crawl with just one VM using 2 CPU cores and 1GB of RAM is not a sign of system instability? I have 8GB of RAM, it should equal a speedy system but for some reason due to the new memory allocation system it does not. I've tried using purge in terminal but it seems to have little effect.

Also, if I breath on my trackpad and causing a kernel panic isn't a sign of instability? It was inadvertent and I did it because it was resting on my chest while I was watching something yet it immediately caused my system to reboot. I've also had another KP which I made a thread about but no one responded to, no idea what caused it.



It takes 3 seconds to go full screen because of the HTML 5 animation in Chromium and Safari when double clicking a youtube video. My "old equus africanus asinus" machine is a mid 2012 MBP, it is more than capable of handling the animations but the delay inherent in the animation is causing the delay. Clearly, you have no idea what you are talking about.
Clearly my late 2013 15" rMBP has no issues doing what you say takes your machine 3 seconds to do. Obviously something isn't right with your machine or your setup, figure it out instead of blaming software that works fine on everyone else's machines. Would you like me to make a video of how fast it is? I'll be happy to do that for you.

And yes, I upgrade my MacBook every refresh cycle, so a two year old MacBook would be used as a doorstop in my house.
Score: 3 Votes (Like | Disagree)
WallToWallMacs Avatar
136 months ago
I want stability. Something that's been lacking in OS X in recent years.

What has been unstable about it? I've been running Mavericks as soon as it came out and not a single kernel panic, little to no problems with Safari and pretty much everything working as planned (I guess not using gmail also helps the situation).

A new OS per year is ridiculous.

Why is it ridiculous? it is nothing less than a rolling release with features being added only when mature and taking bite size changes rather than trying to cram a **** tonne of features into a single release then running around like headless chickens for the next 6 months fixing bugs.
Score: 3 Votes (Like | Disagree)

Popular Stories

iPhone SE 4 Thumb 1

iPhone SE 4 With Apple's Own 5G Modem 'Confirmed' to Launch in March

Tuesday November 19, 2024 12:12 pm PST by
Barclays analyst Tom O'Malley and his colleagues recently traveled to Asia to meet with various electronics manufacturers and suppliers. In a research note this week, outlining key takeaways from the trip, the analysts said they have "confirmed" that a fourth-generation iPhone SE with an Apple-designed 5G modem is slated to launch towards the end of the first quarter next year. In line with previo...
airtag purple

AirTag 2 Rumored to Launch Next Year With These New Features

Sunday November 17, 2024 5:18 am PST by
Apple released the AirTag in April 2021, so it is now three over and a half years old. While the AirTag has not received any hardware updates since then, a new version of the item tracking accessory is rumored to be in development. Below, we recap rumors about a second-generation AirTag. Timing Apple is aiming to release a new AirTag in mid-2025, according to Bloomberg's Mark Gurman....
at t turbo indicator iphone 16 pro max v0 8hrh7w5f3w1e1

AT&T Turbo Indicator Showing Up in iPhone Status Bar for Subscribers

Wednesday November 20, 2024 3:42 am PST by
AT&T has begun displaying "Turbo" in the iPhone carrier label for customers subscribed to its premium network prioritization service, according to reports on Reddit. The new indicator seems to have started appearing after users updated to iOS 18.1.1, but that could be just coincidence. Image credit: Reddit user No_Highlight7476 The Turbo feature provides enhanced network performance through ...
Generic iOS 18 Feature Real Mock

Apple Releases iOS 18.1.1 and iPadOS 18.1.1 With Security Fixes

Tuesday November 19, 2024 10:10 am PST by
Apple today released iOS 18.1.1 and iPadOS 18.1.1, minor updates to the iOS 18 and iPadOS 18 operating systems that debuted earlier in September. iOS 18.1.1 and iPadOS 18.1.1 come three weeks after the launch of iOS 18.1. The new software can be downloaded on eligible iPhones and iPads over-the-air by going to Settings > General > Software Update. Apple has also released iOS 17.7.2 for...
Magic Mouse Next to Keyboard

No, Apple CEO Tim Cook Didn't Say He Prefers Logitech's MX Master 3 Over the Magic Mouse

Sunday November 17, 2024 3:03 pm PST by
While the Logitech MX Master 3 is a terrific mouse for the Mac, reports claiming that Apple CEO Tim Cook prefers that mouse over the Magic Mouse are false. The Wall Street Journal last month published an interview with Cook, in which he said he uses every Apple product every day. Soon after, The Verge's Wes Davis attempted to replicate using every Apple product in a single day. During that...
iPhone 17 Slim Feature Single Camera 1 Redux

'iPhone 17 Air' Rumored to Surpass iPhone 6 as Thinnest iPhone Ever

Monday November 18, 2024 1:07 pm PST by
In a research note with Hong Kong-based investment bank Haitong today, obtained by MacRumors, Apple analyst Jeff Pu said he agrees with a recent rumor claiming that the so-called "iPhone 17 Air" will be around 6mm thick. "We agreed with the recent chatter of an 6mm thickness ultra-slim design of the iPhone 17 Slim model," he wrote. If that measurement proves to be accurate, there would be ...
bug security vulnerability issue fix larry

Make Sure to Update: iOS 18.1.1 and macOS Sequoia 15.1.1 Fix Actively Exploited Vulnerabilities

Tuesday November 19, 2024 10:52 am PST by
The iOS 18.1.1, iPadOS 18.1.1, and macOS Sequoia 15.1.1 updates that Apple released today address JavaScriptCore and WebKit vulnerabilities that Apple says have been actively exploited on some devices. With the JavaScriptCore vulnerability, processing maliciously crafted web content could lead to arbitrary code execution. The WebKit vulnerability had the same issue with maliciously crafted...
apple card feature2

Apple Card 3% Daily Cash Back Now Available From Two More Apple Partners

Tuesday November 19, 2024 10:36 am PST by
Apple has partnered with select merchants to offer Apple Card users three percent Daily Cash back on their purchases, and two new companies were added to the partner list today. When purchasing goods and services from Booking.com and ChargePoint, Apple Card users will now get more cash back. Booking.com is a site for reserving flights, cars, cruises, and hotels, while ChargePoint sells...